S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Rear puddle lights not working on passenger side rear

Old Jan 9, 2017 | 12:05 PM
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Rear puddle lights not working on passenger side rear

Fellas. Need some help. My passenger side rear door lights (there is a red light on the side of door and a white light at the bottom) will not come on. I tried swapping the front passenger white light and red lights that I know both work with the passenger rear and they still won't come on in the rear.

Ideas?



Again, this is ONLY the lights on the Passenger side rear door ONLY.

Last edited by Jason B; Jan 9, 2017 at 03:23 PM.
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Old Jan 9, 2017 | 05:53 PM
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Dealer says most likely a door control module. There is one for each door. Sound correct?
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Old Jan 10, 2017 | 09:39 AM
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DAS should identify fault code. Diagram shows module, need VIN to supply replacement part #. Ambitious... pull door panel check harness before replacing module.
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Old Jan 10, 2017 | 09:41 AM
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Originally Posted by konigstiger
DAS should identify fault code. Diagram shows module, need VIN to supply replacement part #. Ambitious... pull door panel check harness before replacing module.
Thanks.

I'm still under Mercedes CPO warranty. I called and they said it may not be under warranty. I would hope it is...?

Last edited by Jason B; Jan 10, 2017 at 11:12 AM.
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Old Jan 10, 2017 | 09:45 AM
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It is usually the harness on Vehicles that see regular use of rear doors.
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Old Jan 10, 2017 | 11:13 AM
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Not much use here on rear doors and only 22,000 miles I guess the easiest repair is a new door module...
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Old Jan 10, 2017 | 11:59 AM
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At your mileage it is probably the module. Star/ das can confirm it.
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Old Jan 10, 2017 | 12:41 PM
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Thanks, you guys are great. I just find it funny that power windows, shades, everything else works, just not those two lights in the door. that module should be covered by CPO you would think.?
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Old Jan 10, 2017 | 12:50 PM
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Originally Posted by Jason B
module should be covered by CPO you would think.?
Yes, harnesses & control modules should be covered.
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Old Jan 12, 2017 | 03:35 PM
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Hi Jason,


I hope this is helpful. I replaced my door lights, with those door lights that contain the MB logo (sample pictures of the lights are on another thread). I ended up getting the dealership to do it for me (cost $80 CDN), because they had to make a change in the Command system to recognise the lights. All I know it was a setting change, and it was not a difficult change, but it took them a while to figure out what change to make...


Jeff
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Old Jan 12, 2017 | 03:37 PM
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Thanks, that seems of though. Those type of lights draw the same current and should work regardless.
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Old Jan 12, 2017 | 03:47 PM
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I agree with you, but when I changed the light on one door, it did not work; so I brought it to the dealership to complete the job. They quickly changed the lights, thinking that everything should work; but it did not. Then they made the command system change, and I been good ever since...


Jeff
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